Fereastră LEMN-ALUMINIU HV450 Home Soft — Triplu, Passivhaus

Premium timber-aluminium window with triple glazing and thermal insulation down to 0.62 W/(m²K), PassivHaus certified. Unified design with integrated blinds between glass panes.

The HV450 Home Soft by Internorm redefines the standard for comfort and aesthetics in timber-aluminium window systems. The hybrid construction merges the durability of natural wood on the interior with the robustness of an aluminium profile on the exterior, creating a window engineered for extreme climatic conditions whilst maintaining impeccable architectural integration. This technology is the preferred choice for premium renovation and new-build projects.

The high-performance triple glazing delivers thermal resistance of up to 0.62 W/(m²K), positioning the window in the PassivHaus category—ideal for homes with minimal energy consumption. Acoustic insulation of Rw 39–47 dB ensures interior tranquility even in urban environments with elevated noise levels. The profile and glazing system are engineered for superior sealing and consistent heat retention throughout the year.

Structural performance is reinforced by RC1N and RC2 burglary resistance classifications, providing protection against unauthorized penetration attempts. Wind and water resistance are assured, whilst triple glazing durability guarantees years of maintenance-free operation. The treated timber and anodised aluminium construction ensures the window withstands environmental exposure without degradation.

The distinctive visual feature of HV450 is the integration of blinds between the glass panes—a solution eliminating the need for separate external treatments whilst creating clean, contemporary lines. This unified design transforms the window from a functional component into an architectural assembly. The coplanar transition from frame to sash delivers refined finishing and minimalist visual depth.

HV450 Home Soft is recommended for high-end residential properties, passive houses, and contemporary renovations. Investment in this window ensures thermal comfort for decades, increased property value, and a premium living experience.

The HV450 delivers thermal transmittance down to Uw 0.62 W/(m²K), meeting PassivHaus certification and NZEB requirements. The triple glazing paired with wood-aluminium profiles and warm spacer technology minimizes heat loss, ensuring stable indoor temperature year-round.

The aluminium cladding shields the wood profiles from UV radiation, moisture, and temperature fluctuations, ensuring low-maintenance durability for decades. The wood interior provides natural thermal comfort and warm tactile experience indoors, blending classic aesthetics with modern performance.

The HV450 achieves sound insulation ratings (Rw) from 39 to 47 dB depending on configuration and gas fill (argon or krypton). This performance is ideal for properties near busy roads or urban noise, delivering a quiet, peaceful indoor environment.

Integrated blinds between the glass panes are an available option for the HV450, not standard. They provide light control and privacy without taking window sill space and require no cleaning, staying pristine indefinitely. They can be customized in various finishes to match your interior design.

The HV450 is available in RC1N and RC2 security grades protecting against forced entry. RC1N is suitable for homes in quiet residential areas, while RC2 features adjustable multi-point hardware and is recommended for urban properties or clients prioritizing security. RC3 can be ordered for high-risk situations.

Installation of the HV450 follows precise opening measurement and the frame can be completely custom-sized to fit any irregular opening or special dimension. Professional installers ensure perfect air-tightness and alignment with mounting systems for optimal insulation performance. We recommend consulting with a design specialist ahead of time to confirm exact dimensions.